They used an orbiting X-ray telescope called Chandra to study the way that clusters of galaxies grow. They discovered that this growth is stifled in exactly the way that dark-energy theory predicts.

通过“钱德拉”X射线绕轨太空望远镜对星系团的增长模式进行观测研究，他们发现，正如“暗能量”理论预测的一样，星系团的增长受到了抑制。

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This Chandra study is much deeper than previous X-ray observations.

这项钱德拉的研究要比先前的X射线观测深入很多。

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ThisChandra study is much deeper than previous X-ray observations.

这项钱德拉的研究要比先前的X射线观测深入很多。

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It's now set for launch in 2017, when it will be joined by the Neutron Star Interior Composition Explorer (NICER), an addition to the International Space Station also selected as part of the Explorer program last week that will use a process called X-ray timing to study neutron stars.

ENGADGET: NASA gives planet-hunting TESS space telescope go-ahead for 2017 launch

The loop was seen using the European space telescope XMM-Newton to study it in X-ray wavelengths.

BBC: Arches Cluster, Leicester

One of the interesting means the physicists article focuses on is the use of proton-induced x-ray emission (PIXE), which allows for a non-destructive study of art objects.

FORBES: Scientists Use Ion Beams To Detect Forged Art